The American Registry of Radiologic Technologists (ARRT) is the world’s largest organization offering credentials in medical imaging, interventional procedures, and radiation therapy, overseeing and administering education, ethics, and examination requirements.

The mission of the American Society of Radiologic Technologists is to advance and elevate the medical imaging and radiation therapy profession and to enhance the quality and safety of patient care.

AHRA is a resource and catalyst for the development of professional leadership in medical imaging management.

ASTRO is the premier radiation oncology society in the world, with more than 10,000 members and is dedicated to improving patient care through professional education and training, support for clinical practice and health policy standards, advancement of science and research and advocacy.

The Association for Radiologic & Imaging Nursing (ARIN) was founded in 1981 as the professional organization representing nurses who practice in the diagnostic, neuro/cardiovascular, interventional, ultrasonography, computerized tomography, nuclear medicine, magnetic resonance, and radiation oncology.

RSNA promotes excellence in patient care and health care delivery through education, research and technologic innovation.

The Society of Interventional Radiology (SIR) is a nonprofit, professional medical society whose core purpose and mission is to work with its members to deliver patient-centered care through image-guided therapy.